Landing a twin Squirrel by night, on a dark blue steel mesh trolley on an unlit helipad was always something I hated doing. Especially as the damned thing was over two feet off the ground. It was too small for the pilot to see any visual cues once over it.
Thankfully, it's hydraulic drive engine failed terminally after a couple of years, with the aircraft on it, parked by myself, halfway on its way into the hangar for the night. So the owners, the police, had to guard their base all night because the whole place was now insecure and the aircraft was now offline until an engineer could free off the hydraulics the following morning. They finally took my longstanding advice and bought an electric Heli-lift with a remote control.